Which Is an Action of the Extensor Pollicis Longus

question 43

Multiple Choice

Which is an action of the extensor pollicis longus?

• A)flexion of the thumb at the carpometacarpal,metacarpophalangeal,and interphalangeal joints
• B)flexion of the hand at the wrist joint
• C)extension of the thumb at the carpometacarpal,metacarpophalangeal,and interphalangeal joints
• D)ulnar deviation (adduction)of the hand at the wrist joint

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